Wax crayon has for long been a kid-friendly artistic medium thanks to the few stains it would leave on hand. Besides, less powdery and with very smooth touch on paper surface, wax crayon is a good companion for children who are either art beginners or just lovers of casual graffiti. A good variation of wax crayon is water-soluble crayon, which allow the user to wet the crayon color on the surface to create effects like watercolor does. Also, water-soluble crayon colors for sure are easily to wash with water, sparing mothers from troubles washing and cleaning if their kids draw on clothes!